Channel Interrupt Flag Status and Clear
Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |
SUSP | TCMPL | TERR | |||||||
Access | R/W | R/W | R/W | ||||||
Reset | 0 | 0 | 0 |
Channel Suspend
This flag is cleared by writing a '1' to it.
This flag is set when a block transfer with suspend block action is completed, when a software suspend command is executed, when a suspend event is received or when an invalid descriptor is fetched by the DMA.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Channel Suspend interrupt flag for the corresponding channel.
For details on available software commands, refer to CHCTRLB.CMD.
For details on available event input actions, refer to CHCTRLB.EVACT.
For details on available block actions, refer to BTCTRL.BLOCKACT.
Channel Transfer Complete
This flag is cleared by writing a '1' to it.
This flag is set when a block transfer is completed and the corresponding interrupt block action is enabled.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Transfer Complete interrupt flag for the corresponding channel.
Channel Transfer Error
This flag is cleared by writing a '1' to it.
This flag is set when a bus error is detected during a beat transfer or when the DMAC fetches an invalid descriptor.
Writing a '0' to this bit has no effect.
Writing a '1' to this bit will clear the Transfer Error interrupt flag for the corresponding channel.